53336665 has 4 divisors (see below), whose sum is σ = 64004004. Its totient is φ = 42669328.

The previous prime is 53336659. The next prime is 53336669. The reversal of 53336665 is 56663335.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40755456 + 12581209 = 6384^2 + 3547^2 .

It is a cyclic number.

It is not a de Polignac number, because 53336665 - 2¹⁵ = 53303897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53336669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5333662 + ... + 5333671.

It is an arithmetic number, because the mean of its divisors is an integer number (16001001).

Almost surely, 2^53336665 is an apocalyptic number.

It is an amenable number.

53336665 is a deficient number, since it is larger than the sum of its proper divisors (10667339).

53336665 is a wasteful number, since it uses less digits than its factorization.

53336665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10667338.

The product of its digits is 145800, while the sum is 37.

The square root of 53336665 is about 7303.1955334634. The cubic root of 53336665 is about 376.4222494351.

The spelling of 53336665 in words is "fifty-three million, three hundred thirty-six thousand, six hundred sixty-five".